71390277

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:167

約数の個数: 72

約数和(自身を含む): 129015744

約数和(自身を除く): 57625467

約数列:

[1, 3, 7, 9, 19, 21, 43, 57, 63, 73, 129, 133, 171, 219, 301, 361, 387, 399, 511, 657, 817, 903, 1083, 1197, 1387, 1533, 2451, 2527, 2709, 3139, 3249, 4161, 4599, 5719, 7353, 7581, 9417, 9709, 12483, 15523, 17157, 21973, 22743, 26353, 28251, 29127, 46569, 51471, 59641, 65919, 79059, 87381, 108661, 139707, 178923, 184471, 197757, 237177, 325983, 417487, 536769, 553413, 977949, 1133179, 1252461, 1660239, 3399537, 3757383, 7932253, 10198611, 23796759, 71390277]

約数ペア:

[(1, 71390277), (3, 23796759), (7, 10198611), (9, 7932253), (19, 3757383), (21, 3399537), (43, 1660239), (57, 1252461), (63, 1133179), (73, 977949), (129, 553413), (133, 536769), (171, 417487), (219, 325983), (301, 237177), (361, 197757), (387, 184471), (399, 178923), (511, 139707), (657, 108661), (817, 87381), (903, 79059), (1083, 65919), (1197, 59641), (1387, 51471), (1533, 46569), (2451, 29127), (2527, 28251), (2709, 26353), (3139, 22743), (3249, 21973), (4161, 17157), (4599, 15523), (5719, 12483), (7353, 9709), (7581, 9417)]